Perhaps you should try some spelling variations:
cong hoang » thong hoang, vuong hoang, cong dong
chuan chau » chuan chat, chuan ha, chua chay
hien sach » dien sach, kien sach, thien hach
hanh hang » thanh hang, hang hang, hanh han
va phuong » va thuong, cac phuong
cong hoan » cong hoa, dong hoa, cong san

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - hanh hang va phuong ((cong hoang) OR (cong hoan)) chuan chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien sach - hanh hang va phuong ((cong hoang) OR (cong hoan)) chuan chau".
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - hanh hang va phuong ((cong hoang) OR (cong hoan)) chuan chau*.